TCEP Reducing Agent

TCEP Reducing Agent

TCEP is the next generation reducing agent. It is used as a hydrochloride salt (TCEP-HCl) with a molecular weight of 286.65 g/mol. It is soluble in water, odourless and non-toxic. It is used as a reducing agent to cleave disulphide bridges during protein chromatography and in SDS-polyacrylamide gel electrophoresis. TCEP is also used in the tissue homogenization process for RNA isolation. TCEP has the following benefits over DTT and 2-ME:

-Odourless
-More powerful reducing agent
-Irreversible reducing agent
-More hydrophilic
-More resistant to oxidation.
-It does not reduce metals used in IMAC
-It causes fewer ITC baseline artefacts
-TCEP is particularly useful when labeling cysteine residues with maleimides. TCEP can keep the cysteines from forming di-sulfide bonds and unlike dithiothreitol and β-mercaptoethanol, it will not react as readily and in certain conditions with the maleimide.

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